Astrophysics · Physics & Astronomy
Astrophysics of Galaxies
The newest papers in Astrophysics of Galaxies that ReadSearch has read, newest first. Each links to its own page, with its authors, date, where it was published and the original.
1,212 papers, from 6 September 2026 to 5 November 2026: 1,212 arXiv preprints.
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Newest papers, page 43
KDG 162: A Nearby Isolated Star-forming Dwarf Galaxy
The nearby dwarf galaxy KDG 162 (also known as KK 153) has recently attracted attention as a potentially gas-rich, isolated, and low-mass dwarf galaxy.Modeling the nanohertz gravitational wave background with the t-process: Improved frequentist analysis of gravitational-wave power
Pulsar timing array (PTA) collaborations have recently reported evidence for a gravitational wave background (GWB) signal in the nanohertz band, which most likely originates from the incoherent…Re-calibrated analytic stellar evolution formulae for the main sequence: Extension to massive stars and variations in $[α/\mathrm{Fe}]$
Analytic formulae are an efficient way to approximate the evolution of a star of a given mass and chemical composition, and are widely used in the literature to compute large grids of evolutionary…Early onset of the hot circumgalactic medium around Milky Way galaxies
Hot coronae are key regulators in Milky Way (MW)-type galaxy formation and are thought to emerge once a galaxy's dark matter halo crosses a critical mass threshold, $M_{\mathrm{vir}}\sim10^{12}…CHemical Evolution in MassIve star-forming COres (CHEMICO). II. Molecular ions, electron fraction, and cosmic-ray ionisation rate
Molecular ions are crucial in initiating and regulating the formation of molecules in the interstellar medium, and are expected to be sensitive tracers of evolution in star-forming regions.Convergence of Roberts flow dynamos in Eulerian and Lagrangian codes
Standard benchmark tests for numerical magnetohydrodynamics codes focus on one- and two-dimensional problems that ignore the possibility of dynamos, i.e., an exponential instability converting…Euclid Quick Data Release (Q1). Exploring the complexity of quenching processes across time, environment, and mass through recently quenched galaxies
Recently quenched galaxies (RQGs) provide insights into galaxy quenching.(Monty Python and the) HoliGRALE: A Hybrid GRALE Lens Inversion Methodology Diagnostically Evaluated with Synthetic and Real Data
We present HoliGRALE (Hybrid, only light included, GRAvitational LEnsing), a hybrid lens modeling extension of the freeform method GRALE.Unravelling the Nature of AT 2025abao: From Precursor to Final Fate
Luminous red novae (LRNe) are potential signatures of common envelope evolution (CEE), a critical yet poorly understood phase in compact binary formation.From the Milky Way to the Early Universe: How Metallicity Shapes the Formation of Double Neutron Stars
Among the compact binaries detected through gravitational wave (GW) emission, double neutron stars (DNSs) hold the unique distinction of having well-characterized local analogs in the Milky Way.Cusps, cores, and one acceleration: dark-matter haloes versus modified dynamics across the full SPARC sample
The rotation curves of the 175 disk galaxies in the SPARC database are confronted, one by one and under identical conditions, with the two mass models that have dominated the missing-mass debate for…Linking simulations and observations of star-forming regions I. Masses and temperatures of ALMAGAL-like cores
Dense cores and clumps in massive star-forming regions are studied through (sub-)millimetre continuum observations, but inferred masses and temperatures can be biased by limited resolution…Broadband radio continuum and host galaxy properties of extremely inverted spectrum compact radio galaxies
We present broadband radio continuum spectra spanning 0.15-8 GHz for a sample of ten Extremely Inverted Spectrum Extragalactic Radio Sources (EISERS), selected from narrowband, low-frequency surveys…Black Hole Horizon Fluctuations from Unruh Quantum Noise
The mean Hawking flux does not determine how quantum stress fluctuations perturb a black-hole geometry.Water Abundance and Ortho-Para Ratio in the S140 Photon Dominated Region
We analyzed archival far-infrared to submillimeter Herschel PACS, SPIRE, and HIFI spectroscopic observations of the S140 photon dominated region (PDR) to constrain the water vapor abundance and…Tentative Detection of FeS toward Orion SrcI
Iron sulfide (FeS) is a key refractory compound in astrophysical environments.Detection of knots in the supernova type Iax remnant Pa 30
We present deep, narrowband Gemini North/GMOS images of the Pa 30 nebula that reveal rich small-scale structure in the ejecta filaments.Rotational excitation of SiC$_6$ by collisions with helium: cross sections, rate coefficients and non-LTE modeling
SiC$_6$ was recently identified toward the carbon-rich circumstellar envelope IRC+10216 through rotational transitions with $J=26$--$40$.The star-forming past and quenching of brightest cluster galaxies in TNG-Cluster
The Brightest Cluster Galaxies (BCGs) in the most massive galaxy clusters of our Universe are, at present, mostly quiescent, elliptical, and red.PAH emission from star-forming and quiescent galaxies at $z=0.5-0.8$ probed by JWST/MIRI
We investigate emission from polycyclic aromatic hydrocarbon (PAH) dust molecules in 224 MIRI-selected star-forming and quiescent galaxies at $z=0.5-0.8$ in the GOODS-South field using…